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Finding the Fourth Proportional to 188,962.73, 260,768.54 and 104,079.79

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Solution

The fourth proportional to 188,962.73, 260,768.54 and 104,079.79 is: 143,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,962.73 : 260,768.54 = 104,079.79 : x
  2. Step 2: Convert to fraction form
    188,962.73/260,768.54 = 104,079.79/x
  3. Step 3: Cross multiply
    188,962.73x = 260,768.54 × 104,079.79
  4. Step 4: Simplify right side
    188,962.73x = 27,140,735,467.97
  5. Step 5: Solve for x
    x = 27,140,735,467.97/188,962.73
  6. Step 6: Final answer
    x = 143,630.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.